From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fabiano Rosas Date: Tue, 25 Jan 2022 21:56:51 +0000 Subject: [PATCH v5 1/5] KVM: PPC: Book3S HV: Stop returning internal values to userspace Message-Id: <20220125215655.1026224-2-farosas@linux.ibm.com> List-Id: References: <20220125215655.1026224-1-farosas@linux.ibm.com> In-Reply-To: <20220125215655.1026224-1-farosas@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-ppc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com, aik@ozlabs.ru Our kvm_arch_vcpu_ioctl_run currently returns the RESUME_HOST values to userspace, against the API of the KVM_RUN ioctl which returns 0 on success. Signed-off-by: Fabiano Rosas Reviewed-by: Nicholas Piggin --- This was noticed while enabling the kvm selftests for powerpc. There's an assert at the _vcpu_run function when we return a value different from the expected. --- arch/powerpc/kvm/powerpc.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 2ad0ccd202d5..50414fb2a5ea 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -1841,6 +1841,14 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu) #ifdef CONFIG_ALTIVEC out: #endif + + /* + * We're already returning to userspace, don't pass the + * RESUME_HOST flags along. + */ + if (r > 0) + r = 0; + vcpu_put(vcpu); return r; } -- 2.34.1